Add 9/15 and 42/16
1st number: 9/15, 2nd number: 2 10/16
9/15 + 42/16 is 129/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
9/15 = 9 × 16/15 × 16 = 144/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
42/16 = 42 × 15/16 × 15 = 630/240 - Add the two like fractions:
144/240 + 630/240 = 144 + 630/240 = 774/240 - 774/240 simplified gives 129/40
- So, 9/15 + 42/16 = 129/40
In mixed form: 39/40
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